-PKG_CHECK_MODULES(SYNFIG, [synfig >= 0.62.01RC2] [ETL >= 0.04.13] sigc++-2.0,,[
- AC_MSG_ERROR([ ** Unable to set up dependent libraries (synfig >= 0.62.01RC2, ETL >= 0.04.13)])
+PKG_CHECK_MODULES(SYNFIG, [synfig >= 0.62.01RC4] [ETL >= 0.04.13] sigc++-2.0,,[
+ AC_MSG_ERROR([ ** Unable to set up dependent libraries (synfig >= 0.62.01RC4, ETL >= 0.04.13)])